Its actually a British Army 1 man Hexi cooker copy (slightly more flimsy though). The stove is reusable and is made from steel.
You can also get a crusader metal cup holder which fits over the top of the stove. I suppose you could drill a series of holes along the top side of a cup holder and then thread half a dozen titanium tent pags through to make the grill.
http://www.shoponthefarside.co.uk/node/38